36 results about "Potassium feldspar" patented technology

The invention discloses a matte glaze and a preparation method thereof. The matte glaze comprises the following components by weight: 1-5 parts of zinc oxide, 5-15 parts of barium carbonate, 0-15 parts of zirconium silicate, 10-25 parts of potassium feldspar, 10-20 parts of kaolin, 5-15 parts of calcite, 5-15 parts of calcined talcum powder, 20-35 parts of a matte frit and 0.5-1 part of an additive. Specifically, the matte frit comprises the following components by weight: 30-50 parts of SiO2, 15-20 parts of Al2O3, 0.01-0.5 part of Fe2O3, 3-10 parts of CaO, 0.5-5 parts of MgO, 1-5 parts of K2O, 3-10 parts of Na2O, 3-10 parts of ZnO, 0.1-1 part of B2O3 and 10-25 parts of BaO. By introducing the matte frit, the melting temperature of the formula is lowered, the firing range of the formula isbroadened, and the glaze texture achieves a fine matte effect.

This invention provides a method for activating and extracting potassium from potassium feldspar, the method comprising the following steps: (1) ball milling potassium feldspar raw material to obtain pre-activated potassium feldspar powder; the pre-activated potassium feldspar powder is in a near-amorphous state; (2) mixing the pre-activated potassium feldspar powder with an alkaline solution and performing a stirring transformation reaction, followed by a first solid-liquid separation to obtain a transformed solid product; the Si / K molar ratio of the main phase of the transformed solid product does not exceed 2.5; the phase composition of the transformed solid product includes garnet and / or nepheline; (3) mixing the transformed solid product with an acid solution and performing a second solid-liquid separation to obtain a potassium-rich leachate. This invention utilizes a stirring transformation reaction with a mixed alkaline solution to restructure potassium feldspar minerals, increasing the reactivity of potassium, and then dissolving potassium with acid to ultimately obtain a potassium-rich leachate, which is beneficial for further recycling.

This invention discloses a high-strength ceramic valley-peak structured corrugated filler, the raw materials of which include clay, kaolin, potassium feldspar powder, cordierite powder, zirconium dioxide powder, reinforcing granular powder, bauxite, and a binder. The corrugated filler material prepared by the method described in this invention has good strength, making it less prone to breakage during stacking or use, thus improving the usability and durability of the corrugated filler.

The present application relates to the technical field of glaze, and particularly relates to a composite zircon white opal frit, a preparation method thereof, super-white glaze using the composite zircon white opal frit and ceramic tile. The raw materials of the composite zircon white opal frit include, in terms of weight parts, quartz 25-40 parts, calcined alumina 5-10 parts, potassium feldspar 20-35 parts, talc 3-10 parts, calcite 5-10 parts, calcium phosphate 5-10 parts, calcined shell 1-5 parts, zirconium boride 7-15 parts, zirconite sand 3-10 parts, kaolin 1-5 parts and zinc oxide 3-10 parts. The raw materials of the composite zircon white opal frit described above can make the composite zircon white opal frit have a high whitening effect; meanwhile, two cooling and holding processes are adopted in the cooling and holding stage, the content of SiO2, P2O5 and MgO in the chemical composition of the composite zircon white opal frit is adjusted, a large amount of fine needle-like MgSiO3 can be generated, and the opalescence and whiteness of the glaze are improved after the obtained composite opal frit is used in the glaze.

The application discloses a production process of high-potassium base compound fertilizer, which comprises the following steps: S1, raw material pretreatment: crushing potassium feldspar to 200 meshes, mixing with 5% sulfuric acid at a mass ratio of 1:3, calcining at 120-130 DEG C for 2-3 hours, washing until the pH is 6.5-7.0, and drying to obtain potassium feldspar activated powder; S2, putting potassium citrate solution, calcium citrate solution, potassium feldspar activated powder, trace element organic acid salt solution, urea, modified zeolite and binder into a high-speed mixer in proportion, uniformly stirring, adopting high-tower granulation to obtain base material particles; S3, drying the base material particles, removing the particles with a diameter less than 2.5 mm, spraying a plurality of composite films on the surface of the base material particles to coat, and drying to obtain coated base material particles; and S4, spraying bacillus subtilis agent on the surface of the coated base material particles, and low-temperature drying to obtain the high-potassium base compound fertilizer. The high-potassium base compound fertilizer produced by the application has high nutrient components, long fertilizer efficiency, small environmental pollution, and can improve the soil environment and improve the crop yield.

The present application relates to the field of microbial technology, and particularly relates to a strain of Helman atlantic bacillus and application thereof Atlantibacter hermannii , the classification and naming of which is Helman atlantic bacillus, the preservation unit is China General Microbiological Culture Collection Center, the preservation number is CGMCC No. 36680, and the preservation time is November 19, 2025. The potassium-dissolving strain can activate potassium-containing minerals such as biotite, muscovite and potassium feldspar in soil, release solid potassium therein, and convert the solid potassium into slow-release potassium and readily available potassium for plants to absorb, thereby significantly improving the potassium condition of soil and ensuring long-term supply of potassium nutrients.

This invention belongs to the field of architectural ceramics, specifically disclosing a matte ultra-soft ceramic tile with a digital mold effect and its preparation method. The ceramic tile comprises, from bottom to top, a body, a base glaze layer, an intermediate glaze layer, a pattern layer, a digital micro-engraving ink layer, and a protective glaze layer. The raw materials for preparing the intermediate glaze layer, by weight, include: 20-35 parts of sodium feldspar, 5-10 parts of potassium feldspar, 5-10 parts of wollastonite, 5-15 parts of dolomite, 5-15 parts of washed clay, 5-20 parts of calcined talc, 3-8 parts of calcined kaolin, 2-5 parts of alumina, 10-20 parts of barium carbonate, 1-5 parts of calcined zinc oxide, and 2-5 parts of strontium carbonate. The raw materials for preparing the digital micro-engraving ink layer, by weight, include: 40-50 parts of inorganic materials, 3-8 parts of dispersant, and 40-60 parts of solvent; the inorganic materials contain bismuth vanadate, a low-temperature first glass powder, and a high-temperature second glass powder.

The application relates to an ultra-low thermal conductivity external wall external insulation foam ceramic and a preparation method thereof, and belongs to the technical field of thermal insulation materials. The preparation method of the ultra-low thermal conductivity external wall external insulation foam ceramic comprises the following steps: (1) mixing boron carbide, iron oxide, fluorite, albite and potassium feldspar to obtain a mixture; (2) ball milling the mixture into mixed powder I; (3) uniformly stirring the mixed powder I and aluminum nitride powder to prepare a foaming agent; (4) ball milling solid waste raw materials into solid waste powder; (5) mixing the foaming agent, the solid waste powder and water, and uniformly stirring to prepare mixed powder II; (6) pressing the mixed powder II into a green body; and (7) sintering the green body to obtain the foam ceramic. The prepared foam ceramic has the structural feature that small pores surround large pores, and can simultaneously meet the indexes of density, strength and thermal conductivity, and meets the requirements of the national standard of "external wall external insulation foam ceramic", and can be used for external wall external insulation.

This invention relates to the field of ceramic technology, specifically to a corrosion-resistant daily-use ceramic and its preparation method. The ceramic body is obtained by firing basic green body particles that have undergone outer coating and sequential treatment with a dual zirconium source. The core of the method lies in: at the end of the spray granulation stage, a carboxyl-grafted polysiloxane precursor and aluminum nitrate nonahydrate are used to coat the outer layer of the basic green body particles; subsequently, zirconium acetylacetonate and zirconium oxynitrate are introduced sequentially for treatment. This technical solution can precisely enrich the modified components in the outer layer and interface region of the green body particles, thereby significantly improving the ceramic's acid and alkali corrosion resistance, post-corrosion mechanical strength retention, and mechanical washing resistance without significantly altering the traditional potassium feldspar-quartz-kaolin main formulation.

This invention relates to the field of glaze technology and discloses a high-strength antibacterial ceramic glaze and its preparation method. The high-strength antibacterial ceramic glaze is composed of the following raw materials in parts by weight: 30-40 parts by weight of kaolin, 5-15 parts by weight of potassium feldspar, 5-15 parts by weight of sodium feldspar, 6-10 parts by weight of talc, 3-8 parts by weight of corundum, 5-10 parts by weight of cordierite, 5-10 parts by weight of dolomite, 2-5 parts by weight of modified cerium-based MOF, and 2-5 parts by weight of modified organopolysilazane. This application achieves the purpose of dispersing the glaze by using modified organopolysilazane, and at the same time utilizes the Si-O-N ceramic formed during sintering to improve the strength of the glaze. By preparing a modified cerium-based MOF, the long-term antibacterial performance of the glaze is improved. The glaze prepared by this application has excellent strength and long-term antibacterial performance.

The present application relates to the technical field of welding material, and discloses a kind of ultra-low carbon bainite high-strength steel matched flux-cored wire for high-speed train bogie and welding method.The flux-cored wire of the present application includes outer skin and flux filled in the outer skin, and the flux includes the following components by mass fraction: sodium fluoride 23-28%, CaCO3 8-15%, sodium titanate 12-15%, natural rutile 5-10%, potassium feldspar 4-7%, electrolytic manganese 6-10%, ferrosilicon 4-6%, nickel powder 6-9%, copper powder 0.5-0.8%, molybdenum iron 2.5-4%, niobium iron 0.2-0.3%, titanium iron 1.2-1.8%, and iron powder 8.6-13.1%.The flux-cored wire of the present application is used for welding of the steel in the manufacture of high-speed train bogie frame, and the weld metal has excellent strength, toughness and corrosion resistance, the weld is fine and has low risk of fatigue cracking, and meets the high standard requirements in the manufacture and service of high-speed train bogie.

The application discloses grass-wood-ash black glaze and a preparation method thereof, and relates to the technical field of glaze preparation. The grass-wood-ash black glaze is prepared from the following raw materials in parts by weight: 50-60 parts of silicon dioxide, 9-12 parts of aluminum oxide, 7-10 parts of calcium oxide, 1-3 parts of magnesium oxide, 4-6 parts of diiron trioxide, 2-6 parts of potassium oxide, 3-8 parts of fluorcarbonate, 5-10 parts of lithium mica, 12-15 parts of quartz stone, 2-4 parts of potassium feldspar, 5-8 parts of plagioclase, 7-10 parts of calcite, 30-35 parts of dolomite, 20-25 parts of illite, 6-9 parts of illite-smectite mixed layer, 5-8 parts of chlorite, 3-5 parts of kaolinite and 10-20 parts of grass-wood-ash. The glaze surface of the grass-wood-ash black glaze has a unique artistic effect of blue-violet kiln-change flow lines on a dark green base, has the advantages of high color saturation, low sintering temperature, unique artistic effect and the like, and has good environmental protection and antibacterial properties.

The application relates to the technical field of building ceramics, and discloses a radiation refrigeration ceramic tile and a preparation method thereof. The radiation refrigeration ceramic tile comprises a bottom glaze layer and a reflective heat insulation surface glaze layer. Raw materials of the bottom glaze layer comprise kaolin, calcined kaolin, porous alumina powder, quartz, calcined talc, nepheline, potassium feldspar, sodium feldspar, trivalent europium ion doped magnesium aluminate spinel powder and zirconium silicate. The purpose of the bottom glaze layer formula design is to design a bottom glaze layer with an expansion coefficient close to that of a conventional qualified ceramic tile, and meanwhile, porous alumina and trivalent europium ion doped magnesium aluminate spinel powder are introduced, so that the expansion coefficient of the bottom glaze layer is consistent with that of a conventional produced body and the reflective heat insulation surface glaze layer, the structure of the porous alumina is not damaged, and the problem that the reflectivity and emissivity of the glaze are difficult to effectively improve when the expansion coefficients of the bottom glaze layer, the body and the surface glaze layer are inconsistent is solved. + The trivalent europium ion doped magnesium aluminate spinel powder ensures that the expansion coefficient of the bottom glaze layer is consistent with that of the conventional produced body and the reflective heat insulation surface glaze layer, the structure of the porous alumina is not damaged, and the problem that the reflectivity and emissivity of the glaze are difficult to effectively improve when the expansion coefficients of the bottom glaze layer, the body and the surface glaze layer are inconsistent is solved.

This invention discloses an additive-free, high-temperature fission activated silicon-calcium-potassium-magnesium-boron-zinc complete nutrient fertilizer and its preparation method, belonging to the field of mineral fertilizer preparation technology. This invention uses potassium feldspar, dolomite, limestone, and natural gypsum as basic raw materials. After crushing and mixing, the raw materials undergo additive-free high-temperature calcination fission at 1200-1300℃. After calcination, the materials are rapidly cooled to below 60℃, and then borax and zinc sulfate monohydrate are added and mixed evenly to obtain the finished product. This invention eliminates the need for chemical additives such as fluxes and combustion aids, effectively reducing production costs. High-temperature calcination allows for full fission of the potassium feldspar lattice, resulting in an effective potassium dissolution rate of ≥90%. The addition of gypsum supplements sulfur, and combined with trace elements such as boron and zinc, forms a complete nutrient formula containing silicon, calcium, potassium, magnesium, sulfur, boron, and zinc. This formula is environmentally friendly to paddy fields and is particularly suitable for rice cultivation. Nutrients are not easily lost and are released stably under flooded conditions. It also meets the nutritional needs of field crops such as wheat and corn throughout their entire growth period, achieving a yield increase of 15-25%. It improves soil compaction, enhances crop resistance to lodging and disease, and features a simple process, low cost, and significant effects, resulting in extremely high economic and ecological benefits.

The application relates to the technical field of full-polished brick manufacturing, in particular to a manufacturing method of 3D stereoscopic super-white crystalline full-polished brick, which solves the problem that the glaze surface of the existing full-polished brick cannot be subjected to multilayer processing in the manufacturing process, thereby affecting the use effect of the glaze surface, and the glaze surface is prone to pinhole phenomenon, and comprises a base body and a composite glaze surface; the base body and the composite glaze surface are formed into 3D stereoscopic super-white crystalline full-polished brick through two-stage sintering; the composite glaze surface is located on the upper surface of the base body; the base body comprises 60% high-viscosity white clay, 20-28% quartz sand, 12-20% potassium feldspar and 3-6% zirconium silicate in terms of weight parts. The glaze surface of the full-polished brick is subjected to composite multilayer processing, the use effect of the glaze surface can be effectively improved, the crystalline glaze composition is accurately adjusted according to the expansion coefficient of the base body, and pinholes and cracks of the glaze surface are avoided.

The present application relates to the technical field of mineral wool production, and discloses a tempering material for producing mineral wool from blast furnace slag and a preparation method of the mineral wool. The tempering material for producing mineral wool from blast furnace slag comprises the following raw materials in parts by mass: 20-30 parts of dolomite, 22-32 parts of calcined coal gangue, 8-15 parts of coupling agent modified kaolin, 6-12 parts of sodium carbonate modified potassium feldspar, and 3-7 parts of a composite modifier; the composite modifier comprises aluminum oxide, zirconium oxide and cerium oxide. By optimizing the component collocation of the tempering material and combining a specific mineral wool preparation process, the present application realizes stable regulation and control of the melt performance, reduces the generation of flower cotton and cotton balls, improves the cotton glue ratio and the comprehensive performance of the finished product, fully utilizes the sensible heat of the hot blast furnace slag, reduces the production cost, and realizes efficient resource utilization of metallurgical waste.

This invention discloses a color-stable purple glaze based on a mineral formula and its applications, belonging to the field of ceramic glaze technology. The purple glaze of this invention, by weight, mainly comprises: 25-35 parts potassium feldspar, 15-25 parts quartz, 8-15 parts calcite, 10-18 parts kaolin, 12-20 parts purple fluorite, 3-8 parts zinc oxide, 2-5 parts borax, 4-9 parts manganese oxide minerals, and 0.5-2 parts rare earth oxides. This invention uses a natural mineral compound for coloring and stabilizes the color through rare earth oxides, offering advantages such as stable color development, small batch-to-batch color variation, low cost, and environmental safety. It solves the technical problems of large batch-to-batch variations and unstable color development in traditional natural mineral purple glazes, making it suitable for large-scale industrial production and widely applicable in architectural ceramics, daily-use ceramics, and art ceramics.

This invention discloses a low-temperature fired, zirconium-free, low-expansion opacifying glaze, which is formed by adhering the glaze to a sanitary ceramic body and then firing it. The glaze does not contain zirconium silicate opacifier and belongs to a zirconium-free glaze system. The glaze comprises dry materials and additives. The dry materials include the following components: 20-40 parts potassium feldspar, 5-20 parts calcined talc, 20-50 parts cordierite, 10-30 parts calcined alumina, 3-15 parts washed kaolin, 5-20 parts calcite, 4-15 parts zinc oxide, and 2-10 parts tricalcium phosphate. This invention also discloses a method for preparing the above-mentioned low-temperature fired, zirconium-free, low-expansion opacifying glaze. The present invention discloses a low-temperature fired zirconium-free, low-expansion opaque glaze and its preparation method. Tricalcium phosphate is used as a phase separation inducer and zinc oxide is used as a zinc source. During the firing process, the glaze undergoes submicron-level phase separation and in-situ zinc spinel formation reaction, which, together with the cordierite crystal phase, achieves dual regulation of opacity whiteness and low thermal expansion performance, thus constructing a zirconium-free glaze system.

This invention discloses an environmentally friendly friction material for high-altitude railways that is resistant to aging and heat fading, and its preparation method. It relates to the field of railway vehicle braking materials and is composed of the following components by weight percentage: modified phenolic resin 7.7%~11.7%, hydrogenated nitrile butadiene rubber 14.4%~16.6%, aluminum dihydrogen phosphate 7.7%~11.0%, basalt fiber 12.1%~14.4%, tungsten disulfide 2.7%~3.3%, zirconium silicate 3.8%~5.1%, flake graphite 9.3%~10.8%, barium sulfate 27.6%~33.1%, potassium feldspar powder 3.8%~5.1%; and accelerators CZ, zinc oxide, stearic acid, and sulfur, each accounting for 8% of the weight of the hydrogenated nitrile butadiene rubber; the sum of the weight percentages of the modified phenolic resin to the potassium feldspar powder is 100%. This invention uses hydrogenated nitrile butadiene rubber (HNBR) as a toughening component, which has an extremely low double bond content in its molecular chain.

This invention provides an auxiliary component for fireproof and flame-retardant indoor soundproof walls based on inorganic cementitious composite materials, relating to the field of fireproof and flame-retardant board technology. It includes: a wear-resistant fire-retardant board and a sound-insulating fireproof board. The wear-resistant fire-retardant board is composed of the following components by weight: 40-60 parts ceramic fiber, 5-10 parts aluminate cement clinker, and 10-15 parts silica powder. The sound-insulating fireproof board is composed of the following components by weight: 25-30 parts ceramic fiber, 15-20 parts potassium feldspar powder, 5-10 parts aluminate cement clinker, 15-20 parts expanded perlite, and 5-10 parts porous diatomaceous earth. The core materials of the wear-resistant fire-retardant board and the sound-insulating fireproof board in this invention are inorganic substrates such as ceramic fiber and potassium feldspar, possessing a Class A long-lasting flame-retardant effect, and also exhibiting excellent characteristics such as wear resistance, high temperature resistance, aging resistance, and sound insulation. This solves the problem that most components do not use high-efficiency inorganic substrates, resulting in overall performance that does not meet ideal standards.

This invention relates to the field of sorting equipment technology, and in particular to a high-efficiency sorting device and method based on the specific gravity difference between potassium feldspar and quartz. The device includes a frame, a sorting box, a drive mechanism, and a composite sorting mechanism. The sorting box is fixedly connected to the frame. The composite sorting mechanism is located inside the upper side of the sorting box and is connected to the inner wall of the sorting box via the eccentric shaft of the drive mechanism. The composite sorting mechanism includes a composite sorting frame and a composite sorting screen plate inclined within the frame. The composite sorting screen plate has several inclined guide grooves. Several discharge channels are arranged parallel to each other along the transverse direction at the discharge end of the composite sorting screen plate. Several discharge bins are located at the bottom of the sorting box, each corresponding to a discharge channel below it. This invention achieves efficient, precise, and continuous sorting of potassium feldspar and quartz, overcoming the problems of low sorting accuracy, low efficiency, narrow particle size adaptability, high energy consumption, and complex operation in existing technologies.

The application provides a low-stress corrosion-resistant cementing agent, a long-term degradation-resistant disc-type suspension porcelain insulator and a preparation method thereof, and relates to an aluminum cement, silica fume, quartz powder, polycarboxylic acid water reducing agent, composite retarder, rust inhibitor 1-2 parts, low-stress corrosion-resistant cementing agent composed of an expanding agent and nano SiO2 sol, and a porcelain body composed of calcined alumina, quartz, potassium feldspar, kaolin, talc and rare earth oxides, which are cemented with metal accessories. The application is a full-chain innovative scheme from structural design, porcelain body formula, cementing material to manufacturing process, and comprehensively solves the long-term degradation problem of the porcelain insulator, realizes no macroscopic defects in the porcelain body, improves the crystal phase stability, uniformly distributes the stress of the head, reduces the maximum stress, has no alkaline corrosion at the cementing interface, keeps the connection strength stable in a harsh environment and has other excellent performances, and provides a long-term degradation-resistant disc-type suspension porcelain insulator.

This invention relates to the field of ceramic glaze technology and discloses an antibacterial glaze for ceramic products and its preparation method. The raw materials of the antibacterial glaze of this invention include 30-38 parts by weight of potassium feldspar, 26-40 parts by weight of quartz, 3-8 parts by weight of calcite, 2-4 parts by weight of alumina, 2-3.5 parts by weight of zirconium silicate, 1-3 parts by weight of dolomite, and 0.5-3 parts by weight of diatomaceous earth-loaded silver antibacterial agent. The modified diatomaceous earth contains a large number of hydroxyl groups, carboxyl groups, and multiple salicylaldehyde Schiff base structures, which have a strong coordination complexing ability for silver ions. It can uniformly load a large number of silver ions onto the surface of diatomaceous earth, improving the loading and dispersibility of the silver antibacterial agent. When added to the ceramic glaze, it endows the glaze with excellent antibacterial properties and has good practical applications in antibacterial ceramics and ceramic products.

This invention relates to an anti-wear daily-use ceramic and its manufacturing process, belonging to the field of ceramic technology. The glaze layer of this ceramic comprises the following raw materials by weight: 15-22 parts sodium feldspar, 5-8 parts potassium feldspar, 12-15 parts quartz, 8-12 parts zircon, 6-10 parts calcite, 9-13 parts Suzhou clay, 25-33 parts ceramic frit, 11-18 parts composite anti-wear agent, and 7-10 parts zinc oxide. The core material of the composite anti-wear agent is magnesium aluminum spinel. After sealing with silica, the specific gravity of the magnesium aluminum spinel is greatly reduced, allowing it to remain stably suspended in the glaze and thus uniformly dispersed within it, providing uniform anti-wear properties. The calcium oxide-doped silica at the sealing points has a lower melting point, acting as a weld, enabling the core material magnesium aluminum spinel to sinter with other components to form a continuous sintered layer. This has a positive effect on improving the wear resistance of the glaze layer and slowing down the deterioration of its gloss.

This invention relates to the field of ceramic glaze technology, and discloses a high-strength antibacterial ceramic glaze and its processing method. This ceramic glaze is formed by mixing potassium feldspar, calcite, and other materials as base materials, and loaded attapulgite antibacterial materials as additives. During the sintering process, the copper ions in the loaded attapulgite antibacterial material are ablated to form copper oxide. Because the copper oxide is loaded with attapulgite, it avoids agglomeration, thus better exerting its antibacterial properties. Furthermore, the silicon-oxygen bonds contained in the organic modification of the attapulgite form silica sol during sintering. The presence of silica sol significantly improves the hydrophobicity of the glaze layer, thereby effectively improving its cleaning effect. In addition, the copper oxide loaded on the attapulgite surface acts as anchor points. When external force is applied to the glaze layer, these anchor points prevent direct slippage of the lamellae, causing cracks to bypass the anchor points, thereby extending the crack propagation path and achieving a reinforcing effect.

The invention discloses a carbon ceramic closing resistor for a high-voltage circuit breaker and a preparation method of the carbon ceramic closing resistor, and belongs to the technical field of power elements. The problems of poor resistor compactness, non-uniform performance, insufficient mechanical property and the like caused by high pressing and sintering difficulty, process instability and high and non-uniform resistor porosity of the carbon ceramic resistor are solved. The preparation process of the resistor comprises the following steps: by taking aluminum oxide and quartz as ceramic phases, presintered kaolin, mullite and potassium feldspar as clay phases and carbon black or graphite as conductive phases, pre-coating the ceramic phases with the clay phases, carrying out vacuum calcination on pre-coated powder, mixing the pre-coated powder with the secondarily added clay phases and the conductive phases, carrying out spray granulation, pressing a green body, sintering and spraying. And obtaining the carbon ceramic closing resistor. According to the invention, the kaolin is pre-sintered, and the clay phase is pre-coated with the ceramic phase, so that the subsequent blank pressing uniformity and density are increased, the structural defects of the carbon ceramic resistor are reduced, and in combination with the spark plasma sintering technology, the batch rapid production of the resistor can be realized.

This invention provides a wear-resistant, non-slip matte ceramic tile and its preparation method, relating to the field of ceramic tile preparation technology. The tile includes a ceramic matrix, the surface of which is covered with a base glaze and a functional glaze. The base glaze, by weight, comprises 38-42 parts potassium feldspar powder, 23-27 parts quartz powder, 13-17 parts kaolin, 8-12 parts calcite powder, 4-6 parts zinc oxide, 1-2 parts sodium carboxymethyl cellulose, and 55-60 parts water. The functional glaze, by weight, comprises 16-18 parts 3mol% yttrium oxide-stabilized zirconium oxide powder, 13-16 parts silicon carbide powder, 0.5-0.9 parts magnesium borate, 0.2-0.4 parts ammonium polyacrylate, 0.3-0.5 parts calcium zirconate powder, 1.4-1.6 parts tetraethyl orthosilicate hydrolysate, 27-29 parts potassium feldspar powder, 22-25 parts quartz powder, and 60-66 parts water. The beneficial effects of this invention are: high wear resistance and long-lasting anti-slip properties are achieved through zirconium oxide phase transformation stress regulation and microcrack structure design.

Provided in the present invention are a cement expansion and reinforcing material for wide temperature range cementing and a preparation method therefor. Said cement expansion and reinforcing material comprises the following components in percentage by mass: 20-40% of sulfoaluminate cement, 20-40% of calcium sulfate, 30-60% of potassium feldspar, 1-10% of nano Al2O3, 1-10% of nano MgO, 1-10% of alumite and 1-10% of ferroaluminate cement. Said cement expansion and reinforcing material is suitable for cementing operations under medium-low temperature and ultra-high temperature deep well conditions, and can improve wellbore sealing integrity and cementing quality.

A kind of high-strength through-body brick and its preparation process, high-strength through-body brick includes the following raw materials: potassium feldspar, pigment particles, calcined alumina, burning talc, zircon, borax, kaolin, zinc oxide, magnesium oxide, titanium dioxide, frit;The application is by limiting the raw material composition of through-body brick, specially firing process is matched, so that the prepared through-body brick has higher bending strength and breaking strength under the condition of reducing product thickness, and has good wear resistance and stain resistance, is easy to clean and does not need surface maintenance, can be suitable for hospital, school, subway, high-speed rail and other places with large flow, with clear requirements for strength, similar civil air defense engineering or other places with requirements.

This invention discloses a wear-resistant daily-use ceramic and its preparation method, belonging to the field of wear-resistant ceramic technology. The method includes the following steps: a bisque is prepared by firing potassium feldspar, sodium feldspar, kaolin, quartz, talc, and mullite as raw materials; a glaze slurry is prepared by firing quartz, sodium feldspar, talc, potassium feldspar, nano-zinc oxide, kaolin, sodium carboxymethyl cellulose, and wear-resistant powder as raw materials; the wear-resistant powder includes hydroxyapatite, fluorite, calcite, zirconium silicate, and TiO2@SiO2-Al2O3; the glaze slurry is applied to the surface of the bisque, dried, and then fired to obtain the ceramic, thus improving the wear resistance of the ceramic.